prefocus plate

The factors that effect the measuring accuracy of dual star point fixed focus measuring method for minimun focal length of plane optical element is analyzed.

分析用双星点定焦法测量平面光学元件最小焦距时影响测量精度的因素 ,指出测量中应注意的问题。

The technical features and advantages of coke dry quenching and coke stabilized quenching are analyzed and compared .

对干法熄焦和稳定熄焦的技术特点和优势进行了分析比较。

In addition, the measurement of other parameters such as parallax is also discussed, and the application of automatic focusing technology on optical mu.

在采用CCD摄像机、LCD图形发生器和数字图像处理技术的基础上,讨论光学多参数测量新方法及其测量系统,实现了焦距、视放大率、调制传递函数以及视差等参数的测量,并着重论述了光电自动定焦在光学参数测量中的应用。

A Study of Negative Focus in Polarization Structure from Focus Theory;

从焦点理论看否定式偏正结构的否定焦点

Determination of the Tar Content in the COG by UV Spectrophotometer

紫外分光光度法测定焦炉煤气中焦油含量

The Negative Range Focus and of "bu;

“不”字的否定范围和否定焦点补议

He focuses the lens of a microscope.

他调整显微镜的透镜以定焦点。

Identification of Unmarked Focus and Marked Focus;

无标记焦点和有标记焦点的确定原则

Research on Auto-zooming & Focusing Visual Sensor and Calibration;

自动变焦聚焦视觉传感器及其标定问题研究

Application of Coulomb Titration in Coke-Determination of Total Sulfur

库仑滴定法在焦炭全硫测定中的应用

Used in TV gathering focus, oscillation frequency and timer circuits.

·适用于电视聚焦，振荡，定时回路。

Changes the control focus in the current running custom dialog

改变当前自定义对话框中的控件焦点

Coke--Determination of true relative density

GB/T4511.4-1984焦炭真相对密度测定方法

Coke--Determination of proximate analysis

GB/T2001-1991焦炭工业分析测定方法

Coke-Determination of shatter strength

GB/T4511.2-1999焦炭落下强度测定方法

He agonizes over every decision.

他对每一项决定都感到焦虑不安。

Method for the determination of the true specific gravity of pitch coke

GB/T3071-1982沥青焦真比重的测定方法

Viscous oil products of coal carbonization--Determination of density

GB/T15243-1994焦化粘油类产品密度测定方法

Method for the determination of water content of coal --Carbonization products

GB/T2288-1980焦化产品水分测定方法

Coke--Determination of show porosity

GB/T4511.1-1984焦炭显气孔率测定方法

"I think you'd better not go back," said Mrs. Pan, very worried.

“我说你一定不要回去，”潘师母焦心地说。